Add mutable Reject

[hizani]

This PR adds mutable.Reject that uses the same algorithm as mutable.Filter, but the predicate return is reversed

[hizani]

I just found out that there is the mutable package, so I will move new stuff there

[hizani]

Added mutable Reject and mutable and not mutable FilterRejectUnstable

[mattg-imprint]

I think update the PR description to reflect the change to use the mutable package.

[hizani]

Done

[samber]

Hey @hizani

Thanks for this first contribution.

Can you split this and move FilterRejectUnstable to a dedicated PR please ?

I'm going to merge the Reject helper.

About the FilterRejectUnstable, it seems very specific to me. I would like to receive more feedback before accepting it.

No is temporary. Yes is forever.

[codecov]

Codecov Report

❌ Patch coverage is 60.00000% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.35%. Comparing base (0875232) to head (bf1e202).

Files with missing lines	Patch %	Lines
mutable/slice.go	43.75%	18 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #901      +/-   ##
==========================================
- Coverage   92.62%   92.35%   -0.27%     
==========================================
  Files          32       32              
  Lines        5110     5155      +45     
==========================================
+ Hits         4733     4761      +28     
- Misses        274      291      +17     
  Partials      103      103              

Flag	Coverage Δ
unittests	92.35% <60.00%> (-0.27%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[hizani]

Moved FilterRejectUnstable to a separate PR: #904